refactor: provide pure api access for semantic kernel

Author: ikesnowy

Cnblogs.DashScope.Sdk.sln

@@ -14,6 +14,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.DashScope.Sample",
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.DashScope.AspNetCore", "src\Cnblogs.DashScope.AspNetCore\Cnblogs.DashScope.AspNetCore.csproj", "{C910495B-87AB-4AC1-989C-B6720695A139}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Cnblogs.DashScope.Core", "src\Cnblogs.DashScope.Core\Cnblogs.DashScope.Core.csproj", "{CC389455-A3EA-4F09-B524-4DC351A1E1AA}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -24,6 +26,7 @@ Global
 		{BC102292-E664-47F5-B0C7-C4D7A2301002} = {CFC8ECB3-5248-46CD-A56C-EC088F2A3804}
 		{8885149A-78F0-4C8E-B9AA-87A46EA69219} = {2E15D1EC-4A07-416E-8BE6-D907F509FD35}
 		{C910495B-87AB-4AC1-989C-B6720695A139} = {008988ED-0A3B-4272-BCC3-7B4110699345}
+		{CC389455-A3EA-4F09-B524-4DC351A1E1AA} = {008988ED-0A3B-4272-BCC3-7B4110699345}
 	EndGlobalSection
 	GlobalSection(ProjectConfigurationPlatforms) = postSolution
 		{FA6A118A-8D26-4B7A-9952-8504B8A0025B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
@@ -42,5 +45,9 @@ Global
 		{C910495B-87AB-4AC1-989C-B6720695A139}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{C910495B-87AB-4AC1-989C-B6720695A139}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{C910495B-87AB-4AC1-989C-B6720695A139}.Release|Any CPU.Build.0 = Release|Any CPU
+		{CC389455-A3EA-4F09-B524-4DC351A1E1AA}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{CC389455-A3EA-4F09-B524-4DC351A1E1AA}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{CC389455-A3EA-4F09-B524-4DC351A1E1AA}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{CC389455-A3EA-4F09-B524-4DC351A1E1AA}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 EndGlobal

README.md

@@ -7,11 +7,11 @@ English | [简体中文](https://github.com/cnblogs/dashscope-sdk/blob/main/READ
 
 An unofficial DashScope SDK maintained by Cnblogs.
 
-# Usage
+# Quick Start
 
 ## Console App
 
-Install Cnblogs.DashScope.Sdk package.
+Install `Cnblogs.DashScope.Sdk` package.
 
 ```csharp
 var client = new DashScopeClient("your-api-key");
@@ -55,8 +55,109 @@ public class YourService(IDashScopeClient client)
 - Text Generation API(qwen-turbo, qwen-max, etc.) - `dashScopeClient.GetQwenCompletionAsync()` and `dashScopeClient.GetQWenCompletionStreamAsync()`
 - BaiChuan Models - Use `dashScopeClient.GetBaiChuanTextCompletionAsync()`
 - LLaMa2 Models - `dashScopeClient.GetLlama2TextCompletionAsync()`
-- Multimodal Generation API(qwen-vl-max, etc.) - `dashScopeClient.GetQWenMultimodalCompletionAsync` and `dashScopeClient.GetQWenMultimodalCompletionStreamAsync`
+- Multimodal Generation API(qwen-vl-max, etc.) - `dashScopeClient.GetQWenMultimodalCompletionAsync()` and `dashScopeClient.GetQWenMultimodalCompletionStreamAsync()`
 - Wanx Models(Image generation, background generation, etc)
   - Image Synthesis - `CreateWanxImageSynthesisTaskAsync()` and `GetWanxImageSynthesisTaskAsync()`
-  - Image Generation - `CreateWanxImageGenerationTaskAsync` and `GetWanxImageGenerationTaskAsync()`
-  - Background Image Generation - `CreateWanxBackgroundGenerationTaskAsync` and `GetWanxBackgroundGenerationTaskAsync`
+  - Image Generation - `CreateWanxImageGenerationTaskAsync()` and `GetWanxImageGenerationTaskAsync()`
+  - Background Image Generation - `CreateWanxBackgroundGenerationTaskAsync()` and `GetWanxBackgroundGenerationTaskAsync()`
+
+
+# Examples
+
+Visit [tests](./test) for more usage of each api.
+
+## Single Text Completion
+
+```csharp
+var prompt = "hello"
+var completion = await client.GetQWenCompletionAsync(QWenLlm.QWenMax, prompt);
+Console.WriteLine(completion.Output.Text);
+```
+
+## Multi-round chat
+
+```csharp
+var history = new List<ChatMessage>
+{
+    new("user", "Please remember this number, 42"),
+    new("assistant", "I have remembered this number."),
+    new("user", "What was the number I metioned before?")
+}
+var parameters = new TextGenerationParameters()
+{
+    ResultFormat = ResultFormats.Message
+};
+var completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+Console.WriteLine(completion.Output.Choices[0].Message.Content); // The number is 42
+```
+
+## Function Call
+
+Creates a function with parameters
+
+```csharp
+string GetCurrentWeather(GetCurrentWeatherParameters parameters)
+{
+    // actual implementation should be different.
+    return "Sunny, 14" + parameters.Unit switch
+    {
+        TemperatureUnit.Celsius => "℃",
+        TemperatureUnit.Fahrenheit => "℉"
+    };
+}
+
+public record GetCurrentWeatherParameters(
+    [property: Required]
+    [property: Description("The city and state, e.g. San Francisco, CA")]
+    string Location,
+    [property: JsonConverter(typeof(EnumStringConverter<TemperatureUnit>))]
+    TemperatureUnit Unit = TemperatureUnit.Celsius);
+
+public enum TemperatureUnit
+{
+    Celsius,
+    Fahrenheit
+}
+```
+
+Append tool information to chat messages.
+
+```csharp
+var tools = new List<ToolDefinition>()
+{
+    new(
+        ToolTypes.Function,
+        new FunctionDefinition(
+            nameof(GetCurrentWeather),
+            "Get the weather abount given location",
+            new JsonSchemaBuilder().FromType<GetCurrentWeatherParameters>().Build()))
+};
+
+var history = new List<ChatMessage>
+{
+    new("user", "What is the weather today in C.A?")
+};
+
+var parameters = new TextGenerationParamters()
+{
+    ResultFormat = ResultFormats.Message,
+    Tools = tools
+};
+
+// send question with available tools.
+var completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+history.Add(completion.Output.Choice[0].Message);
+
+// model responding with tool calls.
+Console.WriteLine(completion.Output.Choice[0].Message.ToolCalls[0].Function.Name); // GetCurrentWeather
+
+// calling tool that model requests and append result into history.
+var result = GetCurrentWeather(JsonSerializer.Deserialize<GetCurrentWeatherParameters>(completion.Output.Choice[0].Message.ToolCalls[0].Function.Arguments));
+history.Add(new("tool", result, nameof(GetCurrentWeather)));
+
+// get back answers.
+completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+Console.WriteLine(completion.Output.Choice[0].Message.Content);
+```
+
+Append the tool calling result with `tool` role, then model will generate answers based on tool calling result.

README.zh-Hans.md

@@ -7,7 +7,7 @@
 
 由博客园维护并使用的非官方灵积服务 SDK
 
-# 使用方法
+# 快速开始
 
 ## 控制台应用
 
@@ -55,8 +55,105 @@ public class YourService(IDashScopeClient client)
 - 通义千问（`qwen-turbo`， `qwen-max` 等） - `dashScopeClient.GetQwenCompletionAsync()` and `dashScopeClient.GetQWenCompletionStreamAsync()`
 - 百川开源大模型 - Use `dashScopeClient.GetBaiChuanTextCompletionAsync()`
 - LLaMa2 大语言模型 - `dashScopeClient.GetLlama2TextCompletionAsync()`
-- 通义千问 VL 和通义千问 Audio(`qwen-vl-max`， `qwen-audio`) - `dashScopeClient.GetQWenMultimodalCompletionAsync` and `dashScopeClient.GetQWenMultimodalCompletionStreamAsync`
+- 通义千问 VL 和通义千问 Audio(`qwen-vl-max`， `qwen-audio`) - `dashScopeClient.GetQWenMultimodalCompletionAsync()` and `dashScopeClient.GetQWenMultimodalCompletionStreamAsync()`
 - 通义万相系列
     - 文生图 - `CreateWanxImageSynthesisTaskAsync()` and `GetWanxImageSynthesisTaskAsync()`
-    - 人像风格重绘 - `CreateWanxImageGenerationTaskAsync` and `GetWanxImageGenerationTaskAsync()`
-    - 图像背景生成 - `CreateWanxBackgroundGenerationTaskAsync` and `GetWanxBackgroundGenerationTaskAsync`
+    - 人像风格重绘 - `CreateWanxImageGenerationTaskAsync()` and `GetWanxImageGenerationTaskAsync()`
+    - 图像背景生成 - `CreateWanxBackgroundGenerationTaskAsync()` and `GetWanxBackgroundGenerationTaskAsync()`
+
+
+# 示例
+
+查看 [测试](./test) 获得更多 API 使用示例。
+
+## 单轮对话
+
+```csharp
+var prompt = "你好"
+var completion = await client.GetQWenCompletionAsync(QWenLlm.QWenMax, prompt);
+Console.WriteLine(completion.Output.Text);
+```
+
+## 多轮对话
+
+```csharp
+var history = new List<ChatMessage>
+{
+    new("user", "Please remember this number, 42"),
+    new("assistant", "I have remembered this number."),
+    new("user", "What was the number I metioned before?")
+}
+var parameters = new TextGenerationParameters()
+{
+    ResultFormat = ResultFormats.Message
+};
+var completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+Console.WriteLine(completion.Output.Choices[0].Message.Content); // The number is 42
+```
+
+## 工具调用
+
+创建一个可供模型使用的方法。
+
+```csharp
+string GetCurrentWeather(GetCurrentWeatherParameters parameters)
+{
+    // implementation is irrenlvent
+    return "Sunny"
+}
+
+public record GetCurrentWeatherParameters(
+    [property: Required]
+    [property: Description("The city and state, e.g. San Francisco, CA")]
+    string Location,
+    [property: JsonConverter(typeof(EnumStringConverter<TemperatureUnit>))]
+    TemperatureUnit Unit = TemperatureUnit.Celsius);
+
+public enum TemperatureUnit
+{
+    Celsius,
+    Fahrenheit
+}
+```
+
+对话时带上方法的名称、描述和参数列表，参数列表以 JSON Schema 的形式提供。
+
+```csharp
+var tools = new List<ToolDefinition>()
+{
+    new(
+        ToolTypes.Function,
+        new FunctionDefinition(
+            nameof(GetCurrentWeather),
+            "获取当前天气",
+            new JsonSchemaBuilder().FromType<GetCurrentWeatherParameters>().Build()))
+};
+
+var history = new List<ChatMessage>
+{
+    new("user", "杭州现在天气如何？")
+};
+
+var parameters = new TextGenerationParamters()
+{
+    ResultFormat = ResultFormats.Message,
+    Tools = tools
+};
+
+// 向模型提问并提供可用的方法
+var completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+
+// 模型试图调用方法
+Console.WriteLine(completion.Output.Choice[0].Message.ToolCalls[0].Function.Name); // GetCurrentWeather
+history.Add(completion.Output.Choice[0].Message);
+
+// 调用方法并将结果保存到聊天记录中
+var result = GetCurrentWeather(JsonSerializer.Deserialize<GetCurrentWeatherParameters>(completion.Output.Choice[0].Message.ToolCalls[0].Function.Arguments));
+history.Add(new("tool", result, nameof(GetCurrentWeather)));
+
+// 模型根据调用结果返回答案
+completion = await client.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, parameters);
+Console.WriteLine(completion.Output.Choice[0].Message.Content) // 现在浙江省杭州市的天气是大部多云，气温为 18 摄氏度。
+```
+
+当模型认为应当调用工具时，返回消息中 `ToolCalls` 会提供调用的详情，本地在调用完成后可以把结果以 `tool` 角色返回。

sample/Cnblogs.DashScope.Sample/Program.cs

@@ -1,9 +1,13 @@
 using System.Text;
+using System.Text.Json;
+using Cnblogs.DashScope.Core;
 using Cnblogs.DashScope.Sample;
 using Cnblogs.DashScope.Sdk;
 using Cnblogs.DashScope.Sdk.QWen;
+using Json.Schema;
+using Json.Schema.Generation;
 
-const string apiKey = "your api key";
+const string apiKey = "sk-eeff76d62cc946e5af8d1444f079a34e";
 var dashScopeClient = new DashScopeClient(apiKey);
 
 Console.WriteLine("Choose the sample you want to run:");
@@ -12,6 +16,7 @@
     Console.WriteLine($"{(int)sampleType}.{sampleType.GetDescription()}");
 }
 
+Console.WriteLine();
 Console.Write("Choose an option: ");
 var type = (SampleType)int.Parse(Console.ReadLine()!);
 
@@ -31,6 +36,9 @@
     case SampleType.ChatCompletion:
         await ChatStreamAsync();
         break;
+    case SampleType.ChatCompletionWithTool:
+        await ChatWithToolsAsync();
+        break;
 }
 
 return;
@@ -88,3 +96,47 @@ async Task ChatStreamAsync()
 
     // ReSharper disable once FunctionNeverReturns
 }
+
+async Task ChatWithToolsAsync()
+{
+    var history = new List<ChatMessage>();
+    var tools = new List<ToolDefinition>
+    {
+        new(
+            ToolTypes.Function,
+            new FunctionDefinition(
+                nameof(GetWeather),
+                "获得当前天气",
+                new JsonSchemaBuilder().FromType<WeatherReportParameters>().Build()))
+    };
+    var chatParameters = new TextGenerationParameters() { ResultFormat = ResultFormats.Message, Tools = tools };
+    var question = new ChatMessage("user", "请问现在杭州的天气如何？");
+    history.Add(question);
+    Console.WriteLine($"{question.Role} > {question.Content}");
+
+    var response = await dashScopeClient.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, chatParameters);
+    var toolCallMessage = response.Output.Choices![0].Message;
+    history.Add(toolCallMessage);
+    Console.WriteLine(
+        $"{toolCallMessage.Role} > {toolCallMessage.ToolCalls![0].Function!.Name}{toolCallMessage.ToolCalls[0].Function!.Arguments}");
+
+    var toolResponse = GetWeather(
+        JsonSerializer.Deserialize<WeatherReportParameters>(toolCallMessage.ToolCalls[0].Function!.Arguments!)!);
+    var toolMessage = new ChatMessage("tool", toolResponse, nameof(GetWeather));
+    history.Add(toolMessage);
+    Console.WriteLine($"{toolMessage.Role} > {toolMessage.Content}");
+
+    var answer = await dashScopeClient.GetQWenChatCompletionAsync(QWenLlm.QWenMax, history, chatParameters);
+    Console.WriteLine($"{answer.Output.Choices![0].Message.Role} > {answer.Output.Choices[0].Message.Content}");
+
+    string GetWeather(WeatherReportParameters parameters)
+    {
+        return "大部多云，气温 "
+               + parameters.Unit switch
+               {
+                   TemperatureUnit.Celsius => "18 摄氏度",
+                   TemperatureUnit.Fahrenheit => "64 华氏度",
+                   _ => throw new InvalidOperationException()
+               };
+    }
+}

sample/Cnblogs.DashScope.Sample/SampleType.cs

@@ -12,4 +12,7 @@ public enum SampleType
 
     [Description("Conversation between user and assistant")]
     ChatCompletion,
+
+    [Description("Conversation with tools")]
+    ChatCompletionWithTool
 }

sample/Cnblogs.DashScope.Sample/SampleTypeDescriptor.cs

@@ -9,6 +9,7 @@ public static string GetDescription(this SampleType sampleType)
             SampleType.TextCompletion => "Simple prompt completion",
             SampleType.TextCompletionSse => "Simple prompt completion with incremental output",
             SampleType.ChatCompletion => "Conversation between user and assistant",
+            SampleType.ChatCompletionWithTool => "Function call sample",
             _ => throw new ArgumentOutOfRangeException(nameof(sampleType), sampleType, "Unsupported sample option")
         };
     }

sample/Cnblogs.DashScope.Sample/WeatherReportParameters.cs

@@ -0,0 +1,19 @@
+using System.Text.Json.Serialization;
+using Json.More;
+using Json.Schema.Generation;
+
+namespace Cnblogs.DashScope.Sample;
+
+public record WeatherReportParameters(
+    [property: Required]
+    [property: Description("要获取天气的省市名称，例如浙江省杭州市")]
+    string Location,
+    [property: JsonConverter(typeof(EnumStringConverter<TemperatureUnit>))]
+    [property: Description("温度单位")]
+    TemperatureUnit Unit = TemperatureUnit.Celsius);
+
+public enum TemperatureUnit
+{
+    Celsius,
+    Fahrenheit
+}

src/Cnblogs.DashScope.AspNetCore/ServiceCollectionInjector.cs

@@ -1,5 +1,5 @@
 using System.Net.Http.Headers;
-using Cnblogs.DashScope.Sdk;
+using Cnblogs.DashScope.Core;
 using Microsoft.Extensions.Configuration;
 
 // ReSharper disable once CheckNamespace